Tuesday's Morning Gainers (CBST, DMND, QCOR)

Among the biggest gainers on Monday, with the exception of National Semiconductor NSM, which has surged 71.29% to $24.10 after agreeing to be acquired by Texas Instruments TXN, are Cubist Pharmaceuticals CBST, Diamond Foods DMND and Questcor Pharmaceuticals QCOR. Shares of Cubist Pharmaceuticals (CBST) have risen around 16% after the company settled its patent litigation with Teva Pharmaceuticals TEVA and granted that company the right to sell a generic version of its Cubicin drug in the U.S. Questcor Pharmaceuticals (QCOR) has surged around 22% to $18.25 after the company provided investors a preliminary business update for the first quarter yesterday. Diamond Foods (DMND) has added around 9% to $62.32 after the company agreed to buy the Pringles snack business from Proctor & Gamble PG